Example usage for io.netty.buffer ByteBuf readerIndex

List of usage examples for io.netty.buffer ByteBuf readerIndex

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Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf readerIndex.

Prototype

public abstract int readerIndex();

Source Link

Document

Returns the readerIndex of this buffer.

Usage

From source file:com.corundumstudio.socketio.parser.UTF8CharsScannerTest.java

License:Apache License

@Test
public void testfindTailIndex() {
    String str = "132 4  \ufffd\ufffd  \\";
    UTF8CharsScanner p = new UTF8CharsScanner();
    ByteBuf b = Unpooled.wrappedBuffer(str.getBytes());
    int len = p.findTailIndex(b, b.readerIndex(), b.capacity(), str.length());
    Assert.assertEquals(b.capacity(), len);
}

From source file:com.corundumstudio.socketio.protocol.PacketDecoder.java

License:Apache License

private boolean isStringPacket(ByteBuf content) {
    return content.getByte(content.readerIndex()) == 0x0;
}

From source file:com.corundumstudio.socketio.protocol.PacketDecoder.java

License:Apache License

private long readLong(ByteBuf chars, int length) {
    long result = 0;
    for (int i = chars.readerIndex(); i < chars.readerIndex() + length; i++) {
        int digit = ((int) chars.getByte(i) & 0xF);
        for (int j = 0; j < chars.readerIndex() + length - 1 - i; j++) {
            digit *= 10;// w  w w. ja  v a2  s .c o m
        }
        result += digit;
    }
    chars.readerIndex(chars.readerIndex() + length);
    return result;
}

From source file:com.corundumstudio.socketio.protocol.PacketDecoder.java

License:Apache License

private boolean hasLengthHeader(ByteBuf buffer) {
    for (int i = 0; i < Math.min(buffer.readableBytes(), 10); i++) {
        byte b = buffer.getByte(buffer.readerIndex() + i);
        if (b == (byte) ':' && i > 0) {
            return true;
        }/*from w w  w.jav  a 2  s  . c  om*/
        if (b > 57 || b < 48) {
            return false;
        }
    }
    return false;
}

From source file:com.corundumstudio.socketio.protocol.PacketDecoder.java

License:Apache License

public Packet decodePackets(ByteBuf buffer, ClientHead client) throws IOException {
    if (isStringPacket(buffer)) {
        // TODO refactor
        int headEndIndex = buffer.bytesBefore((byte) -1);
        int len = (int) readLong(buffer, headEndIndex);

        ByteBuf frame = buffer.slice(buffer.readerIndex() + 1, len);
        // skip this frame
        buffer.readerIndex(buffer.readerIndex() + 1 + len);
        return decode(client, frame);
    } else if (hasLengthHeader(buffer)) {
        // TODO refactor
        int lengthEndIndex = buffer.bytesBefore((byte) ':');
        int lenHeader = (int) readLong(buffer, lengthEndIndex);
        int len = utf8scanner.getActualLength(buffer, lenHeader);

        ByteBuf frame = buffer.slice(buffer.readerIndex() + 1, len);
        if (lenHeader != len) {
            frame = Unpooled.wrappedBuffer(frame.toString(CharsetUtil.UTF_8).getBytes(CharsetUtil.ISO_8859_1));
        }/*ww w. j  ava  2 s.c  om*/
        // skip this frame
        buffer.readerIndex(buffer.readerIndex() + 1 + len);
        return decode(client, frame);
    }
    return decode(client, buffer);
}

From source file:com.corundumstudio.socketio.protocol.PacketDecoder.java

License:Apache License

private Packet parseBinary(ClientHead head, ByteBuf frame) throws IOException {
    if (frame.getByte(0) == 1) {
        frame.readByte();/*  w  w w  . ja  va 2 s .c  o  m*/
        int headEndIndex = frame.bytesBefore((byte) -1);
        int len = (int) readLong(frame, headEndIndex);
        ByteBuf oldFrame = frame;
        frame = frame.slice(oldFrame.readerIndex() + 1, len);
        oldFrame.readerIndex(oldFrame.readerIndex() + 1 + len);
    }

    if (frame.getByte(0) == 'b' && frame.getByte(1) == '4') {
        frame.readShort();
    } else if (frame.getByte(0) == 4) {
        frame.readByte();
    }

    Packet binaryPacket = head.getLastBinaryPacket();
    if (binaryPacket != null) {
        ByteBuf attachBuf;
        if (frame.getByte(0) == 'b' && frame.getByte(1) == '4') {
            attachBuf = frame;
        } else {
            attachBuf = Base64.encode(frame);
        }
        binaryPacket.addAttachment(Unpooled.copiedBuffer(attachBuf));
        frame.readerIndex(frame.readerIndex() + frame.readableBytes());

        if (binaryPacket.isAttachmentsLoaded()) {
            LinkedList<ByteBuf> slices = new LinkedList<ByteBuf>();
            ByteBuf source = binaryPacket.getDataSource();
            for (int i = 0; i < binaryPacket.getAttachments().size(); i++) {
                ByteBuf attachment = binaryPacket.getAttachments().get(i);
                ByteBuf scanValue = Unpooled.copiedBuffer("{\"_placeholder\":true,\"num\":" + i + "}",
                        CharsetUtil.UTF_8);
                int pos = PacketEncoder.find(source, scanValue);
                if (pos == -1) {
                    throw new IllegalStateException(
                            "Can't find attachment by index: " + i + " in packet source");
                }

                ByteBuf prefixBuf = source.slice(source.readerIndex(), pos - source.readerIndex());
                slices.add(prefixBuf);
                slices.add(QUOTES);
                slices.add(attachment);
                slices.add(QUOTES);

                source.readerIndex(pos + scanValue.readableBytes());
            }
            slices.add(source.slice());

            ByteBuf compositeBuf = Unpooled.wrappedBuffer(slices.toArray(new ByteBuf[slices.size()]));
            parseBody(head, compositeBuf, binaryPacket);
            head.setLastBinaryPacket(null);
            return binaryPacket;
        }
    }
    return new Packet(PacketType.MESSAGE);
}

From source file:com.corundumstudio.socketio.protocol.PacketEncoder.java

License:Apache License

public static int find(ByteBuf buffer, ByteBuf searchValue) {
    for (int i = buffer.readerIndex(); i < buffer.readerIndex() + buffer.readableBytes(); i++) {
        if (isValueFound(buffer, i, searchValue)) {
            return i;
        }//w w  w  .  ja  v  a  2  s .  c o  m
    }
    return -1;
}

From source file:com.corundumstudio.socketio.protocol.UTF8CharsScanner.java

License:Apache License

public int getActualLength(ByteBuf inputBuffer, int length) {
    int len = 0;//  ww w  . j a v a 2  s  .  c  o m
    int start = inputBuffer.readerIndex();
    for (int i = inputBuffer.readerIndex(); i < inputBuffer.readableBytes() + inputBuffer.readerIndex();) {
        i = getCharTailIndex(inputBuffer, i);
        len++;
        if (length == len) {
            return i - start;
        }
    }
    throw new IllegalStateException();
}

From source file:com.couchbase.client.core.endpoint.binary.BinaryHandler.java

License:Open Source License

@Override
protected CouchbaseResponse decodeResponse(final ChannelHandlerContext ctx,
        final FullBinaryMemcacheResponse msg) throws Exception {
    BinaryRequest request = currentRequest();
    ResponseStatus status = convertStatus(msg.getStatus());

    CouchbaseResponse response;/*from  ww  w  .j  a  v a2s .c om*/
    ByteBuf content = msg.content().copy();
    long cas = msg.getCAS();
    String bucket = request.bucket();
    if (request instanceof GetRequest || request instanceof ReplicaGetRequest) {
        int flags = 0;
        if (msg.getExtrasLength() > 0) {
            final ByteBuf extrasReleased = msg.getExtras();
            final ByteBuf extras = ctx.alloc().buffer(msg.getExtrasLength());
            extras.writeBytes(extrasReleased, extrasReleased.readerIndex(), extrasReleased.readableBytes());
            flags = extras.getInt(0);
            extras.release();
        }
        response = new GetResponse(status, cas, flags, bucket, content, request);
    } else if (request instanceof GetBucketConfigRequest) {
        response = new GetBucketConfigResponse(status, bucket, content,
                ((GetBucketConfigRequest) request).hostname());
    } else if (request instanceof InsertRequest) {
        response = new InsertResponse(status, cas, bucket, content, request);
    } else if (request instanceof UpsertRequest) {
        response = new UpsertResponse(status, cas, bucket, content, request);
    } else if (request instanceof ReplaceRequest) {
        response = new ReplaceResponse(status, cas, bucket, content, request);
    } else if (request instanceof RemoveRequest) {
        response = new RemoveResponse(status, bucket, content, request);
    } else if (request instanceof CounterRequest) {
        response = new CounterResponse(status, bucket, msg.content().readLong(), cas, request);
    } else if (request instanceof UnlockRequest) {
        response = new UnlockResponse(status, bucket, content, request);
    } else if (request instanceof TouchRequest) {
        response = new TouchResponse(status, bucket, content, request);
    } else if (request instanceof ObserveRequest) {
        byte observed = content.getByte(content.getShort(2) + 4);
        response = new ObserveResponse(status, observed, ((ObserveRequest) request).master(), bucket, content,
                request);
    } else if (request instanceof AppendRequest) {
        response = new AppendResponse(status, cas, bucket, content, request);
    } else if (request instanceof PrependRequest) {
        response = new PrependResponse(status, cas, bucket, content, request);
    } else {
        throw new IllegalStateException(
                "Unhandled request/response pair: " + request.getClass() + "/" + msg.getClass());
    }

    return response;
}

From source file:com.couchbase.client.core.endpoint.util.ByteBufJsonHelper.java

License:Apache License

/**
 * Find the number of bytes until next occurrence of the character c
 * from the current {@link ByteBuf#readerIndex() readerIndex} in buf,
 * with the twist that if this occurrence is prefixed by the prefix
 * character, we try to find another occurrence.
 *
 * @param buf the {@link ByteBuf buffer} to look into.
 * @param c the character to search for.
 * @param prefix the character to trigger a retry.
 * @return the position of the first occurrence of c that is not prefixed by prefix
 * or -1 if none found./*from  ww  w  .  j  av a2s  .c om*/
 */
public static final int findNextCharNotPrefixedBy(ByteBuf buf, char c, char prefix) {
    int found = buf.bytesBefore((byte) c);
    if (found < 1) {
        return found;
    } else {
        int from;
        while (found > -1 && (char) buf.getByte(buf.readerIndex() + found - 1) == prefix) {
            //advance from
            from = buf.readerIndex() + found + 1;
            //search again
            int next = buf.bytesBefore(from, buf.readableBytes() - from + buf.readerIndex(), (byte) c);
            if (next == -1) {
                return -1;
            } else {
                found += next + 1;
            }
        }
        return found;
    }
}